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Namhyung Kim fixed a long standing bug that can cause a kernel panic. 

If the function profiler fails to allocate memory for everything,
 it will do a double free on the same pointer which can cause a panic.
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Merge tag 'trace-fixes-3.9-rc-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Namhyung Kim fixed a long standing bug that can cause a kernel panic.

  If the function profiler fails to allocate memory for everything, it
  will do a double free on the same pointer which can cause a panic"

* tag 'trace-fixes-3.9-rc-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix double free when function profile init failed
This commit is contained in:
Linus Torvalds 2013-04-10 15:56:57 -07:00
parent fe2971a017 83e03b3fe4
commit 9baba6660b
1 changed files with 0 additions and 1 deletions
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1
kernel/trace/ftrace.c
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@ -694,7 +694,6 @@ int ftrace_profile_pages_init(struct ftrace_profile_stat *stat)
free_page(tmp);
}
free_page((unsigned long)stat->pages);
stat->pages = NULL;
stat->start = NULL;